Lunar module cutaway by Frank Munger
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LM-5 "EAGLE" KEY
1 Docking hatch LM/CM
2 Docking drogue (removeable for access)
3 Cabin assembly
4 Mid-section equipment bay
5 Engine-bay deck
6 Aft equipment bay
7 Insulation-support frame
8 Forward-vision window
9 Docking window
10 Forward hatch
11 Descent/ascent section explosive attachment bolts
12 LM/third-stage attachment lugs
13 Lunar-surface sensing probe
14 Primary shock-absorber strut
15 Secondary shock-absorber strut
16 Deployment truss and down-lock
17 a.c./d.c. (28V d.c. 115V a.c, 400Hz)
18 CSM/LM electrical umbilical connectors
19 Electrical control assembly
20 Descent batteries (4x12V silver zinc)
21 Electrical control assemblies, ascent batteries (two), abort electronics, attitude and translation control, rendezvous radar electronics, S-band electronics
22 Environmental-control system
23 Umbilical hose
24 Oxygen control
25 Cabin-air recirculation fan
26 Water control and suit temperature control
27 Cabin pressure-relief valve
28 Water tank
29 Primary and secondary water evaporators
30 Cold-plate units
31 Gaseous oxygen
32 Descent engine, 10:1 throttle ratio, 10,000lb maximum thrust
33 Descent fuel tank. Aerozine 50 (50-50
hydrazine and UDMH) port and starboard
34 Descent oxidiser tank (nitrogen tetroxide)
fore and aft
35 Ascent engine. 3,500lb thrust in vacuo
36 Ascent fuel tank (Aerozine 50); oxidiser tank to starboard
37 Aperture for ascent-engine skirt
38 Helium tank (two)
39 Helium pressurisation control modules
40 Reaction-control motors, 100lb thrust, pulsed or continuous firing
41 Reaction-control fuel (Aerozine 50) port
and starboard
42 Reatcion-contro oxidiser (nitrogen
tetroxide) port and starboard
43 Reaction-control helium
44 Helium pressurisation module
45 Pipe runs to motors
46 Main flight panel
47 Commander's side console
48 Second crew-member's side console
49 Portable life-support equipment
50 Extra-vehicular visor
51 Support and restraint harness
52 Attitude-control stick
53 Translation/thrust control
54 Optical sight
55 Alignment telescope
56 Tracking light
57 Docking light
58 Abort sensor
59 Rate gyro
60 Inertial-measuring unit
61 LM guidance computer
62 Radio-isotope thermal generator
63 Scientific-equipment boxes
64 Specimen return containers
65 S-band steerable antenna
66 S-band erectable antenna (lunar surface)
67 S-band in-flight antenna
68 VHF antenna
69 Scimitar antenna
70 C-band antenna
71 Docking target
72 Rendezvous radar
73 Landing antenna
74 Landing-radar electronics
Source: Flight International
